公开(公告)号：US5079116A

公开(公告)日：1992-01-07

申请号：US569246

申请日：1990-08-17

申请人： Hiromich Tachikawa ,  Hiroaki Yokoya ,  Sadao Osawa

发明人： Hiromich Tachikawa ,  Hiroaki Yokoya ,  Sadao Osawa

IPC分类号： G03G5/14

CPC分类号： G03G5/142 ,  G03G5/14

摘要： An electrophotographic printing plate precursor which comprises a conductive support having provided thereon, in order, an intermediate layer and an electrophotographic photo-receptive layer, wherein the intermediate layer contains at least one compound having at least one amino group and at least one group selected from the group consisting of a carboxyl group, a sulfo group and a hydroxyl group, or a salt of the compound, whereby ink stains are prevented from sticking to the non-image area upon printing.

摘要翻译： 一种电子照相印版前体，其包括依次具有中间层和电子照相感光层的导电载体，其中中间层含有至少一种具有至少一个氨基的化合物和至少一个选自以下的基团： 由羧基，磺基和羟基组成的组，或化合物的盐，从而防止油墨污渍在印刷时粘附到非图像区域。

公开(公告)号：US5035969A

公开(公告)日：1991-07-30

申请号：US476909

申请日：1990-02-08

申请人： Syunichi Kondo ,  Hiroaki Yokoya ,  Seiji Horie

发明人： Syunichi Kondo ,  Hiroaki Yokoya ,  Seiji Horie

IPC分类号： G03G5/06

CPC分类号： G03G5/0629 ,  G03G5/0618 ,  G03G5/062 ,  G03G5/0631 ,  G03G5/0637 ,  G03G5/0638 ,  G03G5/0661

摘要： A novel electrophotographic photoreceptor for copying machine or photoprinter is provided comprising on an electrically conductive support a photoconductive layer, characterized in that said photoconductive layer contains a phthalocyanine pigment and a compound represented by the general formula (I), (II), (III), (IV) or (VI): ##STR1## wherein Z represents a sulfur or oxygen atom; Ar represents a monovalent aromatic hydrocarbon group or monovalent heterocyclic group; R.sub.3 represents a hydrogen atom, alkyl group, aryl group or aralkyl group; Ar and R.sub.3 may together form a ring; and R.sub.1 and R.sub.2 may be the same or different and each represents an alkyl group, aryl group or aralkyl group, ##STR2## wherein Z represents a sulfur or oxygen atom; R.sub.4 represents an alkyl group, alkoxy group, monovalent or bicyclic condensed aryl group, monocyclic or bicyclic condensed aryloxy group or monovalent group derived from heterocyclic group; the two R.sub.4 's in the general formula (IV) being the same or different; R.sup.5 and R.sup.6 may be the same or different and each represents a hydrogen atom, alkyl group, monocyclic or bicyclic condensed aryl group or monovalent group derived from heterocyclic group; R.sup.7 represents a methylene group, polymethylene group, branched alkanediyl group or arylene group; and R.sup.4 and R.sup.5 or R.sup.5 and R.sup.6 may be connected to each other, ##STR3## wherein Z represents a sulfur or oxygen atom; R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13 may be the same or different and each represents a hydrogen atom, an alkyl group, aryl group or monovalent group derived from heterocyclic group, R.sup.8 and R.sup.9 or R.sup.10 and R.sup.11 being optionally connected to each other; R.sup.8, R.sup.9, R.sup.10 and R.sup.11 in the general formula (V) being optionally connected to each other to form a crosslinked ring; and R.sup.14 represents a divalent arylene group, aralkylene group, polymethylene group or alkylene group.

公开(公告)号：US4708922A

公开(公告)日：1987-11-24

申请号：US929537

申请日：1986-11-12

申请人： Hiroaki Yokoya ,  Kenji Sano ,  Hideo Sato

发明人： Hiroaki Yokoya ,  Kenji Sano ,  Hideo Sato

IPC分类号： G03G5/04 ,  G03G5/06 ,  G03G5/09

CPC分类号： G03G5/067 ,  G03G5/0614

摘要： An electrophotographic photoreceptor is disclosed. The photoreceptor contains a specific styryl dye in which the tertiary amino moiety is substituted with aryl groups and a specific organic photoconductive compound in which the nitrogen atoms are substituted with aryl groups. The photoreceptor exhibits high sensitivity and excellent preservation stability and heat stability.

摘要翻译： 公开了一种电子照相感光体。 感光体含有特定的苯乙烯基染料，其中叔氨基部分被芳基取代，其中氮原子被芳基取代的特定有机光电导化合物。 光感受器具有高灵敏度和优异的保存稳定性和热稳定性。